* {
  font-family: "Helvetica Neue",Helvetica,Arial,"Microsoft Yahei","Hiragino Sans GB","Heiti SC","WenQuanYi Micro Hei",sans-serif;
}

body {
  overflow-y: hidden;
  overflow-x: hidden;
}

body,
div,
ul,
h1,
h2,
h3,
h4,
p {
  margin: 0;
  padding: 0;
}

ul li {
  list-style: none;
}

a {
  text-decoration: none;
}

.video-js {
  padding-top: 56.25% !important;
}